<div id="lenta" style="position:absolute;top:-40px;left:0;z-index:10;width:100%;height: 40px; teaxt-align: left;border: 1px solid green;background-color: yellow;"></div>
function showLenta( text ){
$( '#lenta' ).text( text ).animate({
top: '0px'
}, 'slow', function(){
$(this).delay(5000).animate( {
top: '-40px'
}, 'slow' );
});
}